On 2022-02-15 13:53, Michel Dänzer wrote:
> From: Michel Dänzer <[email protected]>
> 
> Even if PSR is allowed for a present GPU, there might be no eDP link
> which supports PSR.
> 
> Fixes: 9b510908e420 ("drm/amdgpu/display: Only set vblank_disable_immediate 
> when PSR is not enabled")
> Signed-off-by: Michel Dänzer <[email protected]>

Looks reasonable to me.

Reviewed-by: Harry Wentland <[email protected]>

Harry

> ---
>  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c   | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index cd8b0d9eb19c..df86517dd532 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4256,6 +4256,9 @@ static int amdgpu_dm_initialize_drm_device(struct 
> amdgpu_device *adev)
>       }
>  #endif
>  
> +     /* Disable vblank IRQs aggressively for power-saving. */
> +     adev_to_drm(adev)->vblank_disable_immediate = true;
> +
>       /* loops over all connectors on the board */
>       for (i = 0; i < link_cnt; i++) {
>               struct dc_link *link = NULL;
> @@ -4301,19 +4304,17 @@ static int amdgpu_dm_initialize_drm_device(struct 
> amdgpu_device *adev)
>                               update_connector_ext_caps(aconnector);
>                       if (psr_feature_enabled)
>                               amdgpu_dm_set_psr_caps(link);
> +
> +                     /* TODO: Fix vblank control helpers to delay PSR entry 
> to allow this when
> +                      * PSR is also supported.
> +                      */
> +                     if (link->psr_settings.psr_feature_enabled)
> +                             adev_to_drm(adev)->vblank_disable_immediate = 
> false;
>               }
>  
>  
>       }
>  
> -     /*
> -      * Disable vblank IRQs aggressively for power-saving.
> -      *
> -      * TODO: Fix vblank control helpers to delay PSR entry to allow this 
> when PSR
> -      * is also supported.
> -      */
> -     adev_to_drm(adev)->vblank_disable_immediate = !psr_feature_enabled;
> -
>       /* Software is initialized. Now we can register interrupt handlers. */
>       switch (adev->asic_type) {
>  #if defined(CONFIG_DRM_AMD_DC_SI)

Reply via email to